Whoahoaaa! Thank you greatly, initially, Rand! Them're the babies in style that I've been looking for.
Looking at the site though - it clicked in - I'd be limited to DPST (ON/OFF)only. I'd have to go for a different style for the ON/OFF/ON switches that are needed as well. (For the Klee and my future MFOS Sequencers. I've gone with standard toggle type switches for my 1st MFOS Sequencer that I posted the pencil crayon panel picture of - just so I can get my first sequencer up and running ASAP.)

I'm definately going to keep that one that you posted in mind though and at that price, may actually grab some anyways. I've wanted that style of switches since the mid 70's, when I first saw the articles on the IMSAI / Altair / Etc.'s in Popular and Radio Electronics, when I were a wee boy of 12.

I'd be limited to DPST (ON/OFF)only. I'd have to go for a different style for the ON/OFF/ON switches that are needed as well. <S>I'm definately going to keep that one that you posted in mind though and at that price, may actually grab some anyways. I've wanted that style of switches since the mid 70's, when I first saw the articles on the IMSAI / Altair / Etc.'s in Popular and Radio Electronics, when I were a wee boy of 12.

Hi Ryk,

Glad you liked them--initially Actually, I've found that with many switches you can open them up and change from one contact arrangement to another.

Switch mfrs. try to economise where possible and use common parts for different variations. I can't say for sure that these will fall into that category but their larger size and the drawing showing the housing shape and "missing" spades in the "DT" position would have me buying at least 8, were I in your position. IOW, I'm betting you can easily get these to be SPDT. Whether you can get the off in the middle is a different question. Tho' I've found that to be possible with many older switches too.

The reason I'm hesitant in this case is that I remember the IMSAI well. It was a kit and we built it. Point here is that the switches used were of two types: the ones shown here, which set hex addresses and commands, and a momentary style for loading the switch-set-bytes into memory. I don't recall any place where they'd have needed on-off-on.

But these paddle and rocker siwtches are often based on a regular slide or toggle switch, which can often be easily swapped out. It's the "appearance" parts which differ. So again, there is a great likelihood that you could mate this desirable front to a rear that is common and available at little cost.

Also, one could always process the DPST into other arrangements with outboard logic... (i.e., On-off-On is possible with two switches, logically locking out the unacceptable dual on position. Using an XOR gate.)

I think I've talked myself into getting some! Those big paddles were certainly very "play-able" for programming the IMSAI. Much moreso than toggles or rockers, which was why they became so common when computers were switch-entry affairs. I've got to believe they would translate well to a play-able Seq like the Klee...

Or any other synth use where quick, precise, multiple switch setting is needed. I wrote before here on e-m how we became pretty adept at getting any one of 16 possible states from any one of 16 states from the IMSAI with a single hand motion. (We had contests to se who could load and run a given program fastest. The Rubik's cube of its time. With printed output of your success! And none or botched output if/when you failed. Ah, school daze.

I've seen you use "we" on a few occasions where I would have expected "I", it made me wonder who "we" is

Hi Jan,

In this case, "we" is a few of us in my high school computer programming class. We (the class) had only HP card-programmed "computers" until the IMSAI arrived. (The HP's were calculators, really; whose only output was an adding machine style tape. The IMSAI (along with a donated Teletype!) was a welcome addition! )

The teacher did not have any electronics building experience, so he asked if there were any in the class who did. I was one of three who raised my hand, and so became one of the IMSAI builders.

I can't imagine I would recommend buying switches, prying them open to change the contact type, putting them back together, then actually using them on the Klee. Unless you just like taking chances, and enjoy replacing switches. I'd stick with buying the right switches and using those.

It looks ugly as sin at the moment. I colour coded some of the holes to explain their functions.

The dark grey are knobs, the green are leds, the red switches (small ones are toggle, large ones are pushbutton), and the blue are banana in/out.

The inner set of toggle switches in the circle will be mounted in a centrifugal pattern, so pointing inwards, center or outwards will select the gate bus for that step. The outer set will be pushbutton switches to select on/off per step.

The led rings will be powered by a cgs led driver circuit, so i can drive 4 leds per channel.

Some of the unused space on the right i will use for an internal clock (maybe with midi sync)

Any suggestions or criticisms will be appreciated, i won't be building this for a couple of months, so i wanna get the panel right.

The line graphic which comes from the load socket I would draw to one of the push buttons (pattern switches) as these are what will be loaded, instead of the first level pot.
Similarly, I would have the gate bus line graphics go straight to the gate bus "circles" and not through the level pot at position 5. Have you thought of rotating the circle through 11.25 degrees so the 12 o'clock position is the "gap" between step 16 and step 1? This way it might make the gate bus graphic a bit less ambigous, as all three lines could go between the pots to the "circles". Does that make sense?
Apart from that, I think it's a really beautiful layout. Very Dr Who. _________________What makes a space ours, is what we put there, and what we do there.

A little late to the party, but here's my panel-in-progress. Need to double-check all the hole sizes, placements, knob clearances, etc, this weekend. I'm using 1/8" jacks (my main box is a Paia 9700). And I purchased sliders with leds in them so that's why there's not a row for pattern leds.

i mounted the sliders with two srews per slider to the front panel: 16x2 holes in the panel. uncle krunkus mounted the sliders to a subpanel. this subpanel is mounted to the frontpanel utilizing the switches, which have to be mounted anyway.
so it is because these 32 screws cannot be seen - very nice IMO._________________
cheers,
matthias
____________
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